Question

the proteins ____ work together to free the transcription factor that is bound by the retinoblastoma protein. multiple choice p53 and p21 p53 and cyclin cyclin and e2f cyclin and cyclin dependent kinase cyclin dependent kinase and p53

Explanation:

Cyclin - cyclin dependent kinase complexes phosphorylate the retinoblastoma protein. This phosphorylation causes a conformational change in the retinoblastoma protein, releasing the bound transcription factor (such as E2F).

Answer:

cyclin and cyclin dependent kinase